Vintage emerald-cut diamond solitaire ring. Centrally set with a octagonal emerald-cut diamond, G colour, VS2 clairty, with a weight of 1.02 carats in an open back half rubover setting, flanked by two tapered baguette cut diamonds in open back half rubover settings with a combined weight of 0.40 carats. The total approximate diamond weight is 1.42 carats, to a stylish solitaire design with a solid polished collet and pierced open backholing, the trumpeting open raised shoulders smooth to a solid shank. Engraved to the interior 'C.A.P TO C.A.L 1~6~63'. Marked platinum and iridium, American, circa 1963, accompanied by Gemological Institute of America report #14168476.